WINTER BARLEY VOLZHSKIY PERVIY IN THE CONDITIONS OF THE NORTH FOREST-STEPPE OF THE KUZNETSK DEPRESSION

Among the grain crops, which are cultivated in Western Siberia, winter grain take a special place. Advantages of winter crops over the summer are that in autumn they develop the powerful root system and cluster well, early in the spring quickly start in growth and ripen for 10-15 days before the summer grains. The winter grain well uses the autumn moisture and suffers less from droughts and dry winds. The winter barley is the new culture for conditions of Kuznetsk Depression, which is earlier not cultivated, it is less frost-resistant in comparison with winter wheat and more strongly suffers from the return of frosts in the spring period after vegetation renewal. The purpose of this research work ? defining of optimum conditions for cultivation of winter barley of the most winter - hardy sort Volzhskiy Perviy in conditions of the northern forest-steppe of Kuznetsk Depression. The weather conditions in the years of researches have the contrast hydrothermal mode during the vegetation of winter barley, their considerable influence on its productivity ? 89,2 % is established. The optimum term of sowing of winter barley of sort Volzhskiy Perviy in conditions of the northern forest-steppe of Kuznetsk Depression is established ? on August 25-27 with norm of seeding of 5,0 million pieces / hectare of the germinating seeds, average productivity thus makes 3,61 t / hectare, maximum in the years of researches ? 4,73 t / hectare. The close interrelation between productivity and elements of productivity of winter barley is defined: with efficiency of an ear, r = 0,7904, quantity of the productive stalks which remained to harvesting, r = 0,6765.